Help Valid registered email or not

[maheshrapothula]

Hi will any one please solve my problem,in the attached image edittext for email id and signup button,my problem is if i click on signup button it should be validate the entered email id is registerd or not ,if it is not registered email id then it shows a toast like "please enter valid email"

 

[psionandy]

Is this a programming problem you're working on? Or is a a problem you're having with a device/application?

 

[maheshrapothula]

Hi psionandy thanks for your replay, yes I have problem with programming because when I will click on sign up button it should verified which is correct email address I mean it should be already registered in different accounts like Gmail, Yahoo,hot mail like that then after successful registration then an otp or any message automatically send to registered mail id

 

[Bg260]

Are you developing an app?

 

[maheshrapothula]

Hi Bg260 thanks for your replay , yes I'm developing login and registration app all are OK but I need to verify the email address which is registered or not while I'm registering. If I give any email id(even which is not registered in Gmail, Yahoo, Hotmail) in edittext it is allowing.finally briefly whatever email id enter in edittext that should be registered otherwise if I click on sign up button it display a message like " please enter valid email id".

 

[psionandy]

I'm not sure if an email system should be allowed to confirm its registered email addresses to you, without you send them email... and at that point you'd only get a delivery failed report after an amount of time IF the server decided to send it.
Doesn't sound like a sensible way of dealing with the problem to me.

Maybe you'd be better validating that the email address was in a correct format (eg A@B.C ) and then using some form of validation link sent to the email address instead.